## Problem 55 Part D

Acidity $K_{a}$
Basicity $K_{b}$
The Conjugate Seesaw $K_{a}\times K_{b}=K_{w}$

Nancy Le - 1F
Posts: 52
Joined: Fri Sep 29, 2017 7:07 am

### Problem 55 Part D

How do you explain the differences in pH based on molecular structure?

Kaileigh Yang 2I
Posts: 49
Joined: Sat Jul 22, 2017 3:00 am

### Re: Problem 55 Part D

Certain substances are bound very tightly together and do not split apart easily. Take for example, CH4 or methane, which is less acidic since all four hydrogen atoms are held very closely to the carbon atom and therefore does not break off as easily. On the other hand, substances held together by polar ionic bonds like HCl, split away to form hydrogen atoms, causing it to have a very low pH and be a very strong acid.